Home / 2,329.21-3,215.15-1,543.51

Finding the Fourth Proportional to 2,329.21, 3,215.15 and 1,543.51

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Solution

The fourth proportional to 2,329.21, 3,215.15 and 1,543.51 is: 2,130.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.21 : 3,215.15 = 1,543.51 : x
  2. Step 2: Convert to fraction form
    2,329.21/3,215.15 = 1,543.51/x
  3. Step 3: Cross multiply
    2,329.21x = 3,215.15 × 1,543.51
  4. Step 4: Simplify right side
    2,329.21x = 4,962,616.18
  5. Step 5: Solve for x
    x = 4,962,616.18/2,329.21
  6. Step 6: Final answer
    x = 2,130.60

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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.