Home / 2,902.11-4,005.90-1,783.10

Finding the Fourth Proportional to 2,902.11, 4,005.90 and 1,783.10

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Solution

The fourth proportional to 2,902.11, 4,005.90 and 1,783.10 is: 2,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,902.11 : 4,005.90 = 1,783.10 : x
  2. Step 2: Convert to fraction form
    2,902.11/4,005.90 = 1,783.10/x
  3. Step 3: Cross multiply
    2,902.11x = 4,005.90 × 1,783.10
  4. Step 4: Simplify right side
    2,902.11x = 7,142,900.26
  5. Step 5: Solve for x
    x = 7,142,900.26/2,902.11
  6. Step 6: Final answer
    x = 2,461.28

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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.