Home / 1,269.15-1,753.10-973.91

Finding the Fourth Proportional to 1,269.15, 1,753.10 and 973.91

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Solution

The fourth proportional to 1,269.15, 1,753.10 and 973.91 is: 1,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.15 : 1,753.10 = 973.91 : x
  2. Step 2: Convert to fraction form
    1,269.15/1,753.10 = 973.91/x
  3. Step 3: Cross multiply
    1,269.15x = 1,753.10 × 973.91
  4. Step 4: Simplify right side
    1,269.15x = 1,707,347.99
  5. Step 5: Solve for x
    x = 1,707,347.99/1,269.15
  6. Step 6: Final answer
    x = 1,345.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.