Home / 5,158.47-7,118.70-3,169.02

Finding the Fourth Proportional to 5,158.47, 7,118.70 and 3,169.02

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Solution

The fourth proportional to 5,158.47, 7,118.70 and 3,169.02 is: 4,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.47 : 7,118.70 = 3,169.02 : x
  2. Step 2: Convert to fraction form
    5,158.47/7,118.70 = 3,169.02/x
  3. Step 3: Cross multiply
    5,158.47x = 7,118.70 × 3,169.02
  4. Step 4: Simplify right side
    5,158.47x = 22,559,302.67
  5. Step 5: Solve for x
    x = 22,559,302.67/5,158.47
  6. Step 6: Final answer
    x = 4,373.25

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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.