Home / 2,877.04-3,970.38-1,697.68

Finding the Fourth Proportional to 2,877.04, 3,970.38 and 1,697.68

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Solution

The fourth proportional to 2,877.04, 3,970.38 and 1,697.68 is: 2,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.04 : 3,970.38 = 1,697.68 : x
  2. Step 2: Convert to fraction form
    2,877.04/3,970.38 = 1,697.68/x
  3. Step 3: Cross multiply
    2,877.04x = 3,970.38 × 1,697.68
  4. Step 4: Simplify right side
    2,877.04x = 6,740,434.72
  5. Step 5: Solve for x
    x = 6,740,434.72/2,877.04
  6. Step 6: Final answer
    x = 2,342.84

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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.