Home / 1,675.52-2,312.22-976.89

Finding the Fourth Proportional to 1,675.52, 2,312.22 and 976.89

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Solution

The fourth proportional to 1,675.52, 2,312.22 and 976.89 is: 1,348.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.52 : 2,312.22 = 976.89 : x
  2. Step 2: Convert to fraction form
    1,675.52/2,312.22 = 976.89/x
  3. Step 3: Cross multiply
    1,675.52x = 2,312.22 × 976.89
  4. Step 4: Simplify right side
    1,675.52x = 2,258,784.60
  5. Step 5: Solve for x
    x = 2,258,784.60/1,675.52
  6. Step 6: Final answer
    x = 1,348.11

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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.