Home / 1,551.60-2,141.40-922.44

Finding the Fourth Proportional to 1,551.60, 2,141.40 and 922.44

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Solution

The fourth proportional to 1,551.60, 2,141.40 and 922.44 is: 1,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.60 : 2,141.40 = 922.44 : x
  2. Step 2: Convert to fraction form
    1,551.60/2,141.40 = 922.44/x
  3. Step 3: Cross multiply
    1,551.60x = 2,141.40 × 922.44
  4. Step 4: Simplify right side
    1,551.60x = 1,975,313.02
  5. Step 5: Solve for x
    x = 1,975,313.02/1,551.60
  6. Step 6: Final answer
    x = 1,273.08

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1.5x scale

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.