Home / 1,924.70-2,656.63-1,139.02

Finding the Fourth Proportional to 1,924.70, 2,656.63 and 1,139.02

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Solution

The fourth proportional to 1,924.70, 2,656.63 and 1,139.02 is: 1,572.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.70 : 2,656.63 = 1,139.02 : x
  2. Step 2: Convert to fraction form
    1,924.70/2,656.63 = 1,139.02/x
  3. Step 3: Cross multiply
    1,924.70x = 2,656.63 × 1,139.02
  4. Step 4: Simplify right side
    1,924.70x = 3,025,954.70
  5. Step 5: Solve for x
    x = 3,025,954.70/1,924.70
  6. Step 6: Final answer
    x = 1,572.17

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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.