Home / 2,866.04-4,299.26-918.40

Finding the Fourth Proportional to 2,866.04, 4,299.26 and 918.40

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Solution

The fourth proportional to 2,866.04, 4,299.26 and 918.40 is: 1,377.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.04 : 4,299.26 = 918.40 : x
  2. Step 2: Convert to fraction form
    2,866.04/4,299.26 = 918.40/x
  3. Step 3: Cross multiply
    2,866.04x = 4,299.26 × 918.40
  4. Step 4: Simplify right side
    2,866.04x = 3,948,440.38
  5. Step 5: Solve for x
    x = 3,948,440.38/2,866.04
  6. Step 6: Final answer
    x = 1,377.66

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1.5x scale

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.