Home / 1,820.32-2,513.04-1,407.52

Finding the Fourth Proportional to 1,820.32, 2,513.04 and 1,407.52

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Solution

The fourth proportional to 1,820.32, 2,513.04 and 1,407.52 is: 1,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820.32 : 2,513.04 = 1,407.52 : x
  2. Step 2: Convert to fraction form
    1,820.32/2,513.04 = 1,407.52/x
  3. Step 3: Cross multiply
    1,820.32x = 2,513.04 × 1,407.52
  4. Step 4: Simplify right side
    1,820.32x = 3,537,154.06
  5. Step 5: Solve for x
    x = 3,537,154.06/1,820.32
  6. Step 6: Final answer
    x = 1,943.15

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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.