Home / 4,754.30-7,131.51-1,291.55

Finding the Fourth Proportional to 4,754.30, 7,131.51 and 1,291.55

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Solution

The fourth proportional to 4,754.30, 7,131.51 and 1,291.55 is: 1,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.30 : 7,131.51 = 1,291.55 : x
  2. Step 2: Convert to fraction form
    4,754.30/7,131.51 = 1,291.55/x
  3. Step 3: Cross multiply
    4,754.30x = 7,131.51 × 1,291.55
  4. Step 4: Simplify right side
    4,754.30x = 9,210,666.08
  5. Step 5: Solve for x
    x = 9,210,666.08/4,754.30
  6. Step 6: Final answer
    x = 1,937.34

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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.