Home / 3,316.95-4,970.76-2,620.57

Finding the Fourth Proportional to 3,316.95, 4,970.76 and 2,620.57

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Solution

The fourth proportional to 3,316.95, 4,970.76 and 2,620.57 is: 3,927.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.95 : 4,970.76 = 2,620.57 : x
  2. Step 2: Convert to fraction form
    3,316.95/4,970.76 = 2,620.57/x
  3. Step 3: Cross multiply
    3,316.95x = 4,970.76 × 2,620.57
  4. Step 4: Simplify right side
    3,316.95x = 13,026,224.53
  5. Step 5: Solve for x
    x = 13,026,224.53/3,316.95
  6. Step 6: Final answer
    x = 3,927.17

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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.