Home / 1,054.60-1,579.86-614.74

Finding the Fourth Proportional to 1,054.60, 1,579.86 and 614.74

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Solution

The fourth proportional to 1,054.60, 1,579.86 and 614.74 is: 920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.60 : 1,579.86 = 614.74 : x
  2. Step 2: Convert to fraction form
    1,054.60/1,579.86 = 614.74/x
  3. Step 3: Cross multiply
    1,054.60x = 1,579.86 × 614.74
  4. Step 4: Simplify right side
    1,054.60x = 971,203.14
  5. Step 5: Solve for x
    x = 971,203.14/1,054.60
  6. Step 6: Final answer
    x = 920.92

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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.