Home / 6,686.02-10,031.36-2,988.64

Finding the Fourth Proportional to 6,686.02, 10,031.36 and 2,988.64

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Solution

The fourth proportional to 6,686.02, 10,031.36 and 2,988.64 is: 4,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.02 : 10,031.36 = 2,988.64 : x
  2. Step 2: Convert to fraction form
    6,686.02/10,031.36 = 2,988.64/x
  3. Step 3: Cross multiply
    6,686.02x = 10,031.36 × 2,988.64
  4. Step 4: Simplify right side
    6,686.02x = 29,980,123.75
  5. Step 5: Solve for x
    x = 29,980,123.75/6,686.02
  6. Step 6: Final answer
    x = 4,484.00

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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.