Home / 1,587.56-2,190.85-888.94

Finding the Fourth Proportional to 1,587.56, 2,190.85 and 888.94

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Solution

The fourth proportional to 1,587.56, 2,190.85 and 888.94 is: 1,226.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.56 : 2,190.85 = 888.94 : x
  2. Step 2: Convert to fraction form
    1,587.56/2,190.85 = 888.94/x
  3. Step 3: Cross multiply
    1,587.56x = 2,190.85 × 888.94
  4. Step 4: Simplify right side
    1,587.56x = 1,947,526.50
  5. Step 5: Solve for x
    x = 1,947,526.50/1,587.56
  6. Step 6: Final answer
    x = 1,226.74

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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.