Home / 1,465.27-2,208.20-1,319.17

Finding the Fourth Proportional to 1,465.27, 2,208.20 and 1,319.17

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Solution

The fourth proportional to 1,465.27, 2,208.20 and 1,319.17 is: 1,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.27 : 2,208.20 = 1,319.17 : x
  2. Step 2: Convert to fraction form
    1,465.27/2,208.20 = 1,319.17/x
  3. Step 3: Cross multiply
    1,465.27x = 2,208.20 × 1,319.17
  4. Step 4: Simplify right side
    1,465.27x = 2,912,983.22
  5. Step 5: Solve for x
    x = 2,912,983.22/1,465.27
  6. Step 6: Final answer
    x = 1,988.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.