Home / 1,585.39-2,188.15-922.35

Finding the Fourth Proportional to 1,585.39, 2,188.15 and 922.35

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Solution

The fourth proportional to 1,585.39, 2,188.15 and 922.35 is: 1,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585.39 : 2,188.15 = 922.35 : x
  2. Step 2: Convert to fraction form
    1,585.39/2,188.15 = 922.35/x
  3. Step 3: Cross multiply
    1,585.39x = 2,188.15 × 922.35
  4. Step 4: Simplify right side
    1,585.39x = 2,018,224.60
  5. Step 5: Solve for x
    x = 2,018,224.60/1,585.39
  6. Step 6: Final answer
    x = 1,273.01

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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.