Home / 1,561.17-2,341.31-587.05

Finding the Fourth Proportional to 1,561.17, 2,341.31 and 587.05

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Solution

The fourth proportional to 1,561.17, 2,341.31 and 587.05 is: 880.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.17 : 2,341.31 = 587.05 : x
  2. Step 2: Convert to fraction form
    1,561.17/2,341.31 = 587.05/x
  3. Step 3: Cross multiply
    1,561.17x = 2,341.31 × 587.05
  4. Step 4: Simplify right side
    1,561.17x = 1,374,457.25
  5. Step 5: Solve for x
    x = 1,374,457.25/1,561.17
  6. Step 6: Final answer
    x = 880.40

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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.