Home / 1,237.19-1,856.67-929.63

Finding the Fourth Proportional to 1,237.19, 1,856.67 and 929.63

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Solution

The fourth proportional to 1,237.19, 1,856.67 and 929.63 is: 1,395.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237.19 : 1,856.67 = 929.63 : x
  2. Step 2: Convert to fraction form
    1,237.19/1,856.67 = 929.63/x
  3. Step 3: Cross multiply
    1,237.19x = 1,856.67 × 929.63
  4. Step 4: Simplify right side
    1,237.19x = 1,726,016.13
  5. Step 5: Solve for x
    x = 1,726,016.13/1,237.19
  6. Step 6: Final answer
    x = 1,395.11

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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.