Home / 1,349.16-1,862.04-1,071.60

Finding the Fourth Proportional to 1,349.16, 1,862.04 and 1,071.60

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Solution

The fourth proportional to 1,349.16, 1,862.04 and 1,071.60 is: 1,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.16 : 1,862.04 = 1,071.60 : x
  2. Step 2: Convert to fraction form
    1,349.16/1,862.04 = 1,071.60/x
  3. Step 3: Cross multiply
    1,349.16x = 1,862.04 × 1,071.60
  4. Step 4: Simplify right side
    1,349.16x = 1,995,362.06
  5. Step 5: Solve for x
    x = 1,995,362.06/1,349.16
  6. Step 6: Final answer
    x = 1,478.97

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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.