Home / 3,602.16-4,970.70-2,109.88

Finding the Fourth Proportional to 3,602.16, 4,970.70 and 2,109.88

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Solution

The fourth proportional to 3,602.16, 4,970.70 and 2,109.88 is: 2,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,602.16 : 4,970.70 = 2,109.88 : x
  2. Step 2: Convert to fraction form
    3,602.16/4,970.70 = 2,109.88/x
  3. Step 3: Cross multiply
    3,602.16x = 4,970.70 × 2,109.88
  4. Step 4: Simplify right side
    3,602.16x = 10,487,580.52
  5. Step 5: Solve for x
    x = 10,487,580.52/3,602.16
  6. Step 6: Final answer
    x = 2,911.47

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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.