Home / 2,165.32-2,988.14-1,170.59

Finding the Fourth Proportional to 2,165.32, 2,988.14 and 1,170.59

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Solution

The fourth proportional to 2,165.32, 2,988.14 and 1,170.59 is: 1,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.32 : 2,988.14 = 1,170.59 : x
  2. Step 2: Convert to fraction form
    2,165.32/2,988.14 = 1,170.59/x
  3. Step 3: Cross multiply
    2,165.32x = 2,988.14 × 1,170.59
  4. Step 4: Simplify right side
    2,165.32x = 3,497,888.42
  5. Step 5: Solve for x
    x = 3,497,888.42/2,165.32
  6. Step 6: Final answer
    x = 1,615.41

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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.