Home / 5,585.76-8,345.70-5,391.90

Finding the Fourth Proportional to 5,585.76, 8,345.70 and 5,391.90

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Solution

The fourth proportional to 5,585.76, 8,345.70 and 5,391.90 is: 8,056.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.76 : 8,345.70 = 5,391.90 : x
  2. Step 2: Convert to fraction form
    5,585.76/8,345.70 = 5,391.90/x
  3. Step 3: Cross multiply
    5,585.76x = 8,345.70 × 5,391.90
  4. Step 4: Simplify right side
    5,585.76x = 44,999,179.83
  5. Step 5: Solve for x
    x = 44,999,179.83/5,585.76
  6. Step 6: Final answer
    x = 8,056.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.