Home / 5,695.12-7,851.45-3,807.01

Finding the Fourth Proportional to 5,695.12, 7,851.45 and 3,807.01

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Solution

The fourth proportional to 5,695.12, 7,851.45 and 3,807.01 is: 5,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.12 : 7,851.45 = 3,807.01 : x
  2. Step 2: Convert to fraction form
    5,695.12/7,851.45 = 3,807.01/x
  3. Step 3: Cross multiply
    5,695.12x = 7,851.45 × 3,807.01
  4. Step 4: Simplify right side
    5,695.12x = 29,890,548.66
  5. Step 5: Solve for x
    x = 29,890,548.66/5,695.12
  6. Step 6: Final answer
    x = 5,248.45

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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.