Home / 1,803.23-2,705.55-707.41

Finding the Fourth Proportional to 1,803.23, 2,705.55 and 707.41

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Solution

The fourth proportional to 1,803.23, 2,705.55 and 707.41 is: 1,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,803.23 : 2,705.55 = 707.41 : x
  2. Step 2: Convert to fraction form
    1,803.23/2,705.55 = 707.41/x
  3. Step 3: Cross multiply
    1,803.23x = 2,705.55 × 707.41
  4. Step 4: Simplify right side
    1,803.23x = 1,913,919.60
  5. Step 5: Solve for x
    x = 1,913,919.60/1,803.23
  6. Step 6: Final answer
    x = 1,061.38

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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.