Home / 2,420.93-3,342.47-1,677.17

Finding the Fourth Proportional to 2,420.93, 3,342.47 and 1,677.17

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Solution

The fourth proportional to 2,420.93, 3,342.47 and 1,677.17 is: 2,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.93 : 3,342.47 = 1,677.17 : x
  2. Step 2: Convert to fraction form
    2,420.93/3,342.47 = 1,677.17/x
  3. Step 3: Cross multiply
    2,420.93x = 3,342.47 × 1,677.17
  4. Step 4: Simplify right side
    2,420.93x = 5,605,890.41
  5. Step 5: Solve for x
    x = 5,605,890.41/2,420.93
  6. Step 6: Final answer
    x = 2,315.59

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Double scale
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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.