Home / 4,922.51-7,386.80-2,149.20

Finding the Fourth Proportional to 4,922.51, 7,386.80 and 2,149.20

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Solution

The fourth proportional to 4,922.51, 7,386.80 and 2,149.20 is: 3,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,922.51 : 7,386.80 = 2,149.20 : x
  2. Step 2: Convert to fraction form
    4,922.51/7,386.80 = 2,149.20/x
  3. Step 3: Cross multiply
    4,922.51x = 7,386.80 × 2,149.20
  4. Step 4: Simplify right side
    4,922.51x = 15,875,699.81
  5. Step 5: Solve for x
    x = 15,875,699.81/4,922.51
  6. Step 6: Final answer
    x = 3,225.13

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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.