Home / 1,557.20-2,334.90-583.40

Finding the Fourth Proportional to 1,557.20, 2,334.90 and 583.40

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Solution

The fourth proportional to 1,557.20, 2,334.90 and 583.40 is: 874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.20 : 2,334.90 = 583.40 : x
  2. Step 2: Convert to fraction form
    1,557.20/2,334.90 = 583.40/x
  3. Step 3: Cross multiply
    1,557.20x = 2,334.90 × 583.40
  4. Step 4: Simplify right side
    1,557.20x = 1,362,180.66
  5. Step 5: Solve for x
    x = 1,362,180.66/1,557.20
  6. Step 6: Final answer
    x = 874.76

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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.