Home / 5,210.10-7,815.15-2,288.43

Finding the Fourth Proportional to 5,210.10, 7,815.15 and 2,288.43

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Solution

The fourth proportional to 5,210.10, 7,815.15 and 2,288.43 is: 3,432.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.10 : 7,815.15 = 2,288.43 : x
  2. Step 2: Convert to fraction form
    5,210.10/7,815.15 = 2,288.43/x
  3. Step 3: Cross multiply
    5,210.10x = 7,815.15 × 2,288.43
  4. Step 4: Simplify right side
    5,210.10x = 17,884,373.20
  5. Step 5: Solve for x
    x = 17,884,373.20/5,210.10
  6. Step 6: Final answer
    x = 3,432.64

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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.