Home / 1,526.19-2,106.21-863.11

Finding the Fourth Proportional to 1,526.19, 2,106.21 and 863.11

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Solution

The fourth proportional to 1,526.19, 2,106.21 and 863.11 is: 1,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.19 : 2,106.21 = 863.11 : x
  2. Step 2: Convert to fraction form
    1,526.19/2,106.21 = 863.11/x
  3. Step 3: Cross multiply
    1,526.19x = 2,106.21 × 863.11
  4. Step 4: Simplify right side
    1,526.19x = 1,817,890.91
  5. Step 5: Solve for x
    x = 1,817,890.91/1,526.19
  6. Step 6: Final answer
    x = 1,191.13

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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.