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Finding the Fourth Proportional to 1,984.76, 2,737.72 and 1,277.53

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Solution

The fourth proportional to 1,984.76, 2,737.72 and 1,277.53 is: 1,762.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.76 : 2,737.72 = 1,277.53 : x
  2. Step 2: Convert to fraction form
    1,984.76/2,737.72 = 1,277.53/x
  3. Step 3: Cross multiply
    1,984.76x = 2,737.72 × 1,277.53
  4. Step 4: Simplify right side
    1,984.76x = 3,497,509.39
  5. Step 5: Solve for x
    x = 3,497,509.39/1,984.76
  6. Step 6: Final answer
    x = 1,762.18

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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.