Home / 1,389.14-2,077.37-1,037.99

Finding the Fourth Proportional to 1,389.14, 2,077.37 and 1,037.99

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Solution

The fourth proportional to 1,389.14, 2,077.37 and 1,037.99 is: 1,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389.14 : 2,077.37 = 1,037.99 : x
  2. Step 2: Convert to fraction form
    1,389.14/2,077.37 = 1,037.99/x
  3. Step 3: Cross multiply
    1,389.14x = 2,077.37 × 1,037.99
  4. Step 4: Simplify right side
    1,389.14x = 2,156,273.71
  5. Step 5: Solve for x
    x = 2,156,273.71/1,389.14
  6. Step 6: Final answer
    x = 1,552.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.