Home / 1,587.16-2,190.02-923.88

Finding the Fourth Proportional to 1,587.16, 2,190.02 and 923.88

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Solution

The fourth proportional to 1,587.16, 2,190.02 and 923.88 is: 1,274.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587.16 : 2,190.02 = 923.88 : x
  2. Step 2: Convert to fraction form
    1,587.16/2,190.02 = 923.88/x
  3. Step 3: Cross multiply
    1,587.16x = 2,190.02 × 923.88
  4. Step 4: Simplify right side
    1,587.16x = 2,023,315.68
  5. Step 5: Solve for x
    x = 2,023,315.68/1,587.16
  6. Step 6: Final answer
    x = 1,274.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.