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Finding the Fourth Proportional to 2,806.88, 4,210.32 and 1,506.56

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Solution

The fourth proportional to 2,806.88, 4,210.32 and 1,506.56 is: 2,259.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.88 : 4,210.32 = 1,506.56 : x
  2. Step 2: Convert to fraction form
    2,806.88/4,210.32 = 1,506.56/x
  3. Step 3: Cross multiply
    2,806.88x = 4,210.32 × 1,506.56
  4. Step 4: Simplify right side
    2,806.88x = 6,343,099.70
  5. Step 5: Solve for x
    x = 6,343,099.70/2,806.88
  6. Step 6: Final answer
    x = 2,259.84

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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.