Home / 1,677.08-2,314.49-931.07

Finding the Fourth Proportional to 1,677.08, 2,314.49 and 931.07

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Solution

The fourth proportional to 1,677.08, 2,314.49 and 931.07 is: 1,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.08 : 2,314.49 = 931.07 : x
  2. Step 2: Convert to fraction form
    1,677.08/2,314.49 = 931.07/x
  3. Step 3: Cross multiply
    1,677.08x = 2,314.49 × 931.07
  4. Step 4: Simplify right side
    1,677.08x = 2,154,953.34
  5. Step 5: Solve for x
    x = 2,154,953.34/1,677.08
  6. Step 6: Final answer
    x = 1,284.94

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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.