Home / 1,675.30-2,312.14-1,012.18

Finding the Fourth Proportional to 1,675.30, 2,312.14 and 1,012.18

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Solution

The fourth proportional to 1,675.30, 2,312.14 and 1,012.18 is: 1,396.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.30 : 2,312.14 = 1,012.18 : x
  2. Step 2: Convert to fraction form
    1,675.30/2,312.14 = 1,012.18/x
  3. Step 3: Cross multiply
    1,675.30x = 2,312.14 × 1,012.18
  4. Step 4: Simplify right side
    1,675.30x = 2,340,301.87
  5. Step 5: Solve for x
    x = 2,340,301.87/1,675.30
  6. Step 6: Final answer
    x = 1,396.94

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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.