Home / 1,538.07-2,307.14-716.13

Finding the Fourth Proportional to 1,538.07, 2,307.14 and 716.13

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Solution

The fourth proportional to 1,538.07, 2,307.14 and 716.13 is: 1,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.07 : 2,307.14 = 716.13 : x
  2. Step 2: Convert to fraction form
    1,538.07/2,307.14 = 716.13/x
  3. Step 3: Cross multiply
    1,538.07x = 2,307.14 × 716.13
  4. Step 4: Simplify right side
    1,538.07x = 1,652,208.59
  5. Step 5: Solve for x
    x = 1,652,208.59/1,538.07
  6. Step 6: Final answer
    x = 1,074.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.