Home / 1,587.13-2,190.18-888.46

Finding the Fourth Proportional to 1,587.13, 2,190.18 and 888.46

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Solution

The fourth proportional to 1,587.13, 2,190.18 and 888.46 is: 1,226.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.13 : 2,190.18 = 888.46 : x
  2. Step 2: Convert to fraction form
    1,587.13/2,190.18 = 888.46/x
  3. Step 3: Cross multiply
    1,587.13x = 2,190.18 × 888.46
  4. Step 4: Simplify right side
    1,587.13x = 1,945,887.32
  5. Step 5: Solve for x
    x = 1,945,887.32/1,587.13
  6. Step 6: Final answer
    x = 1,226.04

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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.