Home / 1,607.20-2,409.18-740.50

Finding the Fourth Proportional to 1,607.20, 2,409.18 and 740.50

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Solution

The fourth proportional to 1,607.20, 2,409.18 and 740.50 is: 1,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.20 : 2,409.18 = 740.50 : x
  2. Step 2: Convert to fraction form
    1,607.20/2,409.18 = 740.50/x
  3. Step 3: Cross multiply
    1,607.20x = 2,409.18 × 740.50
  4. Step 4: Simplify right side
    1,607.20x = 1,783,997.79
  5. Step 5: Solve for x
    x = 1,783,997.79/1,607.20
  6. Step 6: Final answer
    x = 1,110.00

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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.