Home / 1,677.24-2,314.58-931.16

Finding the Fourth Proportional to 1,677.24, 2,314.58 and 931.16

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Solution

The fourth proportional to 1,677.24, 2,314.58 and 931.16 is: 1,285.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.24 : 2,314.58 = 931.16 : x
  2. Step 2: Convert to fraction form
    1,677.24/2,314.58 = 931.16/x
  3. Step 3: Cross multiply
    1,677.24x = 2,314.58 × 931.16
  4. Step 4: Simplify right side
    1,677.24x = 2,155,245.44
  5. Step 5: Solve for x
    x = 2,155,245.44/1,677.24
  6. Step 6: Final answer
    x = 1,285.00

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1.5x scale

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.