Home / 2,643.51-3,966.93-1,000.20

Finding the Fourth Proportional to 2,643.51, 3,966.93 and 1,000.20

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Solution

The fourth proportional to 2,643.51, 3,966.93 and 1,000.20 is: 1,500.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.51 : 3,966.93 = 1,000.20 : x
  2. Step 2: Convert to fraction form
    2,643.51/3,966.93 = 1,000.20/x
  3. Step 3: Cross multiply
    2,643.51x = 3,966.93 × 1,000.20
  4. Step 4: Simplify right side
    2,643.51x = 3,967,723.39
  5. Step 5: Solve for x
    x = 3,967,723.39/2,643.51
  6. Step 6: Final answer
    x = 1,500.93

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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.