Home / 6,988.02-10,472.10-3,869.40

Finding the Fourth Proportional to 6,988.02, 10,472.10 and 3,869.40

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Solution

The fourth proportional to 6,988.02, 10,472.10 and 3,869.40 is: 5,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.02 : 10,472.10 = 3,869.40 : x
  2. Step 2: Convert to fraction form
    6,988.02/10,472.10 = 3,869.40/x
  3. Step 3: Cross multiply
    6,988.02x = 10,472.10 × 3,869.40
  4. Step 4: Simplify right side
    6,988.02x = 40,520,743.74
  5. Step 5: Solve for x
    x = 40,520,743.74/6,988.02
  6. Step 6: Final answer
    x = 5,798.60

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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.