Home / 3,127.39-4,691.08-1,047.00

Finding the Fourth Proportional to 3,127.39, 4,691.08 and 1,047.00

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Solution

The fourth proportional to 3,127.39, 4,691.08 and 1,047.00 is: 1,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.39 : 4,691.08 = 1,047.00 : x
  2. Step 2: Convert to fraction form
    3,127.39/4,691.08 = 1,047.00/x
  3. Step 3: Cross multiply
    3,127.39x = 4,691.08 × 1,047.00
  4. Step 4: Simplify right side
    3,127.39x = 4,911,579.66
  5. Step 5: Solve for x
    x = 4,911,579.66/3,127.39
  6. Step 6: Final answer
    x = 1,570.51

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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.