Home / 2,626.17-3,622.84-1,681.20

Finding the Fourth Proportional to 2,626.17, 3,622.84 and 1,681.20

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Solution

The fourth proportional to 2,626.17, 3,622.84 and 1,681.20 is: 2,319.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626.17 : 3,622.84 = 1,681.20 : x
  2. Step 2: Convert to fraction form
    2,626.17/3,622.84 = 1,681.20/x
  3. Step 3: Cross multiply
    2,626.17x = 3,622.84 × 1,681.20
  4. Step 4: Simplify right side
    2,626.17x = 6,090,710.20
  5. Step 5: Solve for x
    x = 6,090,710.20/2,626.17
  6. Step 6: Final answer
    x = 2,319.24

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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.