Home / 1,672.08-2,307.62-1,009.47

Finding the Fourth Proportional to 1,672.08, 2,307.62 and 1,009.47

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Solution

The fourth proportional to 1,672.08, 2,307.62 and 1,009.47 is: 1,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.08 : 2,307.62 = 1,009.47 : x
  2. Step 2: Convert to fraction form
    1,672.08/2,307.62 = 1,009.47/x
  3. Step 3: Cross multiply
    1,672.08x = 2,307.62 × 1,009.47
  4. Step 4: Simplify right side
    1,672.08x = 2,329,484.34
  5. Step 5: Solve for x
    x = 2,329,484.34/1,672.08
  6. Step 6: Final answer
    x = 1,393.17

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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.