Home / 5,124.10-7,686.15-4,200.70

Finding the Fourth Proportional to 5,124.10, 7,686.15 and 4,200.70

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Solution

The fourth proportional to 5,124.10, 7,686.15 and 4,200.70 is: 6,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.10 : 7,686.15 = 4,200.70 : x
  2. Step 2: Convert to fraction form
    5,124.10/7,686.15 = 4,200.70/x
  3. Step 3: Cross multiply
    5,124.10x = 7,686.15 × 4,200.70
  4. Step 4: Simplify right side
    5,124.10x = 32,287,210.31
  5. Step 5: Solve for x
    x = 32,287,210.31/5,124.10
  6. Step 6: Final answer
    x = 6,301.05

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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.