Home / 1,854.30-2,779.94-929.18

Finding the Fourth Proportional to 1,854.30, 2,779.94 and 929.18

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Solution

The fourth proportional to 1,854.30, 2,779.94 and 929.18 is: 1,393.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,854.30 : 2,779.94 = 929.18 : x
  2. Step 2: Convert to fraction form
    1,854.30/2,779.94 = 929.18/x
  3. Step 3: Cross multiply
    1,854.30x = 2,779.94 × 929.18
  4. Step 4: Simplify right side
    1,854.30x = 2,583,064.65
  5. Step 5: Solve for x
    x = 2,583,064.65/1,854.30
  6. Step 6: Final answer
    x = 1,393.01

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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.