Home / 1,557.08-2,334.06-980.36

Finding the Fourth Proportional to 1,557.08, 2,334.06 and 980.36

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Solution

The fourth proportional to 1,557.08, 2,334.06 and 980.36 is: 1,469.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.08 : 2,334.06 = 980.36 : x
  2. Step 2: Convert to fraction form
    1,557.08/2,334.06 = 980.36/x
  3. Step 3: Cross multiply
    1,557.08x = 2,334.06 × 980.36
  4. Step 4: Simplify right side
    1,557.08x = 2,288,219.06
  5. Step 5: Solve for x
    x = 2,288,219.06/1,557.08
  6. Step 6: Final answer
    x = 1,469.56

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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.