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Finding the Fourth Proportional to 5,800.55, 8,700.86 and 1,640.46

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Solution

The fourth proportional to 5,800.55, 8,700.86 and 1,640.46 is: 2,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,800.55 : 8,700.86 = 1,640.46 : x
  2. Step 2: Convert to fraction form
    5,800.55/8,700.86 = 1,640.46/x
  3. Step 3: Cross multiply
    5,800.55x = 8,700.86 × 1,640.46
  4. Step 4: Simplify right side
    5,800.55x = 14,273,416.90
  5. Step 5: Solve for x
    x = 14,273,416.90/5,800.55
  6. Step 6: Final answer
    x = 2,460.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.