Home / 1,929.93-2,663.26-1,045.72

Finding the Fourth Proportional to 1,929.93, 2,663.26 and 1,045.72

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Solution

The fourth proportional to 1,929.93, 2,663.26 and 1,045.72 is: 1,443.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.93 : 2,663.26 = 1,045.72 : x
  2. Step 2: Convert to fraction form
    1,929.93/2,663.26 = 1,045.72/x
  3. Step 3: Cross multiply
    1,929.93x = 2,663.26 × 1,045.72
  4. Step 4: Simplify right side
    1,929.93x = 2,785,024.25
  5. Step 5: Solve for x
    x = 2,785,024.25/1,929.93
  6. Step 6: Final answer
    x = 1,443.07

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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.