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Finding the Fourth Proportional to 5,246, 7,239.48 and 2,888.13

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Solution

The fourth proportional to 5,246, 7,239.48 and 2,888.13 is: 3,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246 : 7,239.48 = 2,888.13 : x
  2. Step 2: Convert to fraction form
    5,246/7,239.48 = 2,888.13/x
  3. Step 3: Cross multiply
    5,246x = 7,239.48 × 2,888.13
  4. Step 4: Simplify right side
    5,246x = 20,908,559.37
  5. Step 5: Solve for x
    x = 20,908,559.37/5,246
  6. Step 6: Final answer
    x = 3,985.62

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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.