Home / 5,139.76-7,709.63-1,244.17

Finding the Fourth Proportional to 5,139.76, 7,709.63 and 1,244.17

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Solution

The fourth proportional to 5,139.76, 7,709.63 and 1,244.17 is: 1,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.76 : 7,709.63 = 1,244.17 : x
  2. Step 2: Convert to fraction form
    5,139.76/7,709.63 = 1,244.17/x
  3. Step 3: Cross multiply
    5,139.76x = 7,709.63 × 1,244.17
  4. Step 4: Simplify right side
    5,139.76x = 9,592,090.36
  5. Step 5: Solve for x
    x = 9,592,090.36/5,139.76
  6. Step 6: Final answer
    x = 1,866.25

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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.