Home / 7,747.18-10,691.10-4,210.37

Finding the Fourth Proportional to 7,747.18, 10,691.10 and 4,210.37

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Solution

The fourth proportional to 7,747.18, 10,691.10 and 4,210.37 is: 5,810.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.18 : 10,691.10 = 4,210.37 : x
  2. Step 2: Convert to fraction form
    7,747.18/10,691.10 = 4,210.37/x
  3. Step 3: Cross multiply
    7,747.18x = 10,691.10 × 4,210.37
  4. Step 4: Simplify right side
    7,747.18x = 45,013,486.71
  5. Step 5: Solve for x
    x = 45,013,486.71/7,747.18
  6. Step 6: Final answer
    x = 5,810.31

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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.