Home / 2,721.63-3,756.38-1,603.52

Finding the Fourth Proportional to 2,721.63, 3,756.38 and 1,603.52

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Solution

The fourth proportional to 2,721.63, 3,756.38 and 1,603.52 is: 2,213.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.63 : 3,756.38 = 1,603.52 : x
  2. Step 2: Convert to fraction form
    2,721.63/3,756.38 = 1,603.52/x
  3. Step 3: Cross multiply
    2,721.63x = 3,756.38 × 1,603.52
  4. Step 4: Simplify right side
    2,721.63x = 6,023,428.31
  5. Step 5: Solve for x
    x = 6,023,428.31/2,721.63
  6. Step 6: Final answer
    x = 2,213.17

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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.