Home / 2,665.65-3,999.08-1,569.45

Finding the Fourth Proportional to 2,665.65, 3,999.08 and 1,569.45

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Solution

The fourth proportional to 2,665.65, 3,999.08 and 1,569.45 is: 2,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.65 : 3,999.08 = 1,569.45 : x
  2. Step 2: Convert to fraction form
    2,665.65/3,999.08 = 1,569.45/x
  3. Step 3: Cross multiply
    2,665.65x = 3,999.08 × 1,569.45
  4. Step 4: Simplify right side
    2,665.65x = 6,276,348.26
  5. Step 5: Solve for x
    x = 6,276,348.26/2,665.65
  6. Step 6: Final answer
    x = 2,354.53

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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.