Home / 1,558.53-2,149.00-1,277.87

Finding the Fourth Proportional to 1,558.53, 2,149.00 and 1,277.87

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Solution

The fourth proportional to 1,558.53, 2,149.00 and 1,277.87 is: 1,762.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.53 : 2,149.00 = 1,277.87 : x
  2. Step 2: Convert to fraction form
    1,558.53/2,149.00 = 1,277.87/x
  3. Step 3: Cross multiply
    1,558.53x = 2,149.00 × 1,277.87
  4. Step 4: Simplify right side
    1,558.53x = 2,746,128.69
  5. Step 5: Solve for x
    x = 2,746,128.69/1,558.53
  6. Step 6: Final answer
    x = 1,762.00

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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.