Home / 1,675.82-2,312.98-1,116.32

Finding the Fourth Proportional to 1,675.82, 2,312.98 and 1,116.32

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Solution

The fourth proportional to 1,675.82, 2,312.98 and 1,116.32 is: 1,540.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.82 : 2,312.98 = 1,116.32 : x
  2. Step 2: Convert to fraction form
    1,675.82/2,312.98 = 1,116.32/x
  3. Step 3: Cross multiply
    1,675.82x = 2,312.98 × 1,116.32
  4. Step 4: Simplify right side
    1,675.82x = 2,582,011.48
  5. Step 5: Solve for x
    x = 2,582,011.48/1,675.82
  6. Step 6: Final answer
    x = 1,540.74

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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.