Home / 1,585.08-2,187.42-922.35

Finding the Fourth Proportional to 1,585.08, 2,187.42 and 922.35

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Solution

The fourth proportional to 1,585.08, 2,187.42 and 922.35 is: 1,272.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.08 : 2,187.42 = 922.35 : x
  2. Step 2: Convert to fraction form
    1,585.08/2,187.42 = 922.35/x
  3. Step 3: Cross multiply
    1,585.08x = 2,187.42 × 922.35
  4. Step 4: Simplify right side
    1,585.08x = 2,017,566.84
  5. Step 5: Solve for x
    x = 2,017,566.84/1,585.08
  6. Step 6: Final answer
    x = 1,272.85

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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.