Home / 1,407.21-2,110.36-585.26

Finding the Fourth Proportional to 1,407.21, 2,110.36 and 585.26

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Solution

The fourth proportional to 1,407.21, 2,110.36 and 585.26 is: 877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.21 : 2,110.36 = 585.26 : x
  2. Step 2: Convert to fraction form
    1,407.21/2,110.36 = 585.26/x
  3. Step 3: Cross multiply
    1,407.21x = 2,110.36 × 585.26
  4. Step 4: Simplify right side
    1,407.21x = 1,235,109.29
  5. Step 5: Solve for x
    x = 1,235,109.29/1,407.21
  6. Step 6: Final answer
    x = 877.70

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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.