Home / 1,557.30-2,148.97-894.06

Finding the Fourth Proportional to 1,557.30, 2,148.97 and 894.06

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Solution

The fourth proportional to 1,557.30, 2,148.97 and 894.06 is: 1,233.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.30 : 2,148.97 = 894.06 : x
  2. Step 2: Convert to fraction form
    1,557.30/2,148.97 = 894.06/x
  3. Step 3: Cross multiply
    1,557.30x = 2,148.97 × 894.06
  4. Step 4: Simplify right side
    1,557.30x = 1,921,308.12
  5. Step 5: Solve for x
    x = 1,921,308.12/1,557.30
  6. Step 6: Final answer
    x = 1,233.74

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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.