Home / 1,475.83-2,038.23-1,005.85

Finding the Fourth Proportional to 1,475.83, 2,038.23 and 1,005.85

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Solution

The fourth proportional to 1,475.83, 2,038.23 and 1,005.85 is: 1,389.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.83 : 2,038.23 = 1,005.85 : x
  2. Step 2: Convert to fraction form
    1,475.83/2,038.23 = 1,005.85/x
  3. Step 3: Cross multiply
    1,475.83x = 2,038.23 × 1,005.85
  4. Step 4: Simplify right side
    1,475.83x = 2,050,153.65
  5. Step 5: Solve for x
    x = 2,050,153.65/1,475.83
  6. Step 6: Final answer
    x = 1,389.15

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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.