Home / 1,557.24-2,152.05-1,277.02

Finding the Fourth Proportional to 1,557.24, 2,152.05 and 1,277.02

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Solution

The fourth proportional to 1,557.24, 2,152.05 and 1,277.02 is: 1,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.24 : 2,152.05 = 1,277.02 : x
  2. Step 2: Convert to fraction form
    1,557.24/2,152.05 = 1,277.02/x
  3. Step 3: Cross multiply
    1,557.24x = 2,152.05 × 1,277.02
  4. Step 4: Simplify right side
    1,557.24x = 2,748,210.89
  5. Step 5: Solve for x
    x = 2,748,210.89/1,557.24
  6. Step 6: Final answer
    x = 1,764.80

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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.