Home / 1,580.04-2,179.28-1,160.26

Finding the Fourth Proportional to 1,580.04, 2,179.28 and 1,160.26

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Solution

The fourth proportional to 1,580.04, 2,179.28 and 1,160.26 is: 1,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580.04 : 2,179.28 = 1,160.26 : x
  2. Step 2: Convert to fraction form
    1,580.04/2,179.28 = 1,160.26/x
  3. Step 3: Cross multiply
    1,580.04x = 2,179.28 × 1,160.26
  4. Step 4: Simplify right side
    1,580.04x = 2,528,531.41
  5. Step 5: Solve for x
    x = 2,528,531.41/1,580.04
  6. Step 6: Final answer
    x = 1,600.30

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1.5x scale

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.