Home / 1,611.48-2,223.15-948.06

Finding the Fourth Proportional to 1,611.48, 2,223.15 and 948.06

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Solution

The fourth proportional to 1,611.48, 2,223.15 and 948.06 is: 1,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611.48 : 2,223.15 = 948.06 : x
  2. Step 2: Convert to fraction form
    1,611.48/2,223.15 = 948.06/x
  3. Step 3: Cross multiply
    1,611.48x = 2,223.15 × 948.06
  4. Step 4: Simplify right side
    1,611.48x = 2,107,679.59
  5. Step 5: Solve for x
    x = 2,107,679.59/1,611.48
  6. Step 6: Final answer
    x = 1,307.92

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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.