Home / 5,686.63-8,528.22-1,988.17

Finding the Fourth Proportional to 5,686.63, 8,528.22 and 1,988.17

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Solution

The fourth proportional to 5,686.63, 8,528.22 and 1,988.17 is: 2,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.63 : 8,528.22 = 1,988.17 : x
  2. Step 2: Convert to fraction form
    5,686.63/8,528.22 = 1,988.17/x
  3. Step 3: Cross multiply
    5,686.63x = 8,528.22 × 1,988.17
  4. Step 4: Simplify right side
    5,686.63x = 16,955,529.84
  5. Step 5: Solve for x
    x = 16,955,529.84/5,686.63
  6. Step 6: Final answer
    x = 2,981.65

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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.