Home / 3,430.86-4,731.70-2,721.58

Finding the Fourth Proportional to 3,430.86, 4,731.70 and 2,721.58

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Solution

The fourth proportional to 3,430.86, 4,731.70 and 2,721.58 is: 3,753.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.86 : 4,731.70 = 2,721.58 : x
  2. Step 2: Convert to fraction form
    3,430.86/4,731.70 = 2,721.58/x
  3. Step 3: Cross multiply
    3,430.86x = 4,731.70 × 2,721.58
  4. Step 4: Simplify right side
    3,430.86x = 12,877,681.45
  5. Step 5: Solve for x
    x = 12,877,681.45/3,430.86
  6. Step 6: Final answer
    x = 3,753.49

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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.