Home / 1,557.06-2,148.60-884.86

Finding the Fourth Proportional to 1,557.06, 2,148.60 and 884.86

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Solution

The fourth proportional to 1,557.06, 2,148.60 and 884.86 is: 1,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.06 : 2,148.60 = 884.86 : x
  2. Step 2: Convert to fraction form
    1,557.06/2,148.60 = 884.86/x
  3. Step 3: Cross multiply
    1,557.06x = 2,148.60 × 884.86
  4. Step 4: Simplify right side
    1,557.06x = 1,901,210.20
  5. Step 5: Solve for x
    x = 1,901,210.20/1,557.06
  6. Step 6: Final answer
    x = 1,221.03

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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.