Home / 5,423.86-7,482.34-3,155.19

Finding the Fourth Proportional to 5,423.86, 7,482.34 and 3,155.19

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Solution

The fourth proportional to 5,423.86, 7,482.34 and 3,155.19 is: 4,352.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.86 : 7,482.34 = 3,155.19 : x
  2. Step 2: Convert to fraction form
    5,423.86/7,482.34 = 3,155.19/x
  3. Step 3: Cross multiply
    5,423.86x = 7,482.34 × 3,155.19
  4. Step 4: Simplify right side
    5,423.86x = 23,608,204.34
  5. Step 5: Solve for x
    x = 23,608,204.34/5,423.86
  6. Step 6: Final answer
    x = 4,352.66

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Half scale
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Double scale
Find fourth proportional to 5,424.86, 7,483.72 and 3,156.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.