Home / 1,477.18-2,214.22-1,129.76

Finding the Fourth Proportional to 1,477.18, 2,214.22 and 1,129.76

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Solution

The fourth proportional to 1,477.18, 2,214.22 and 1,129.76 is: 1,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.18 : 2,214.22 = 1,129.76 : x
  2. Step 2: Convert to fraction form
    1,477.18/2,214.22 = 1,129.76/x
  3. Step 3: Cross multiply
    1,477.18x = 2,214.22 × 1,129.76
  4. Step 4: Simplify right side
    1,477.18x = 2,501,537.19
  5. Step 5: Solve for x
    x = 2,501,537.19/1,477.18
  6. Step 6: Final answer
    x = 1,693.45

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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.