Home / 2,389.16-3,298.50-1,893.80

Finding the Fourth Proportional to 2,389.16, 3,298.50 and 1,893.80

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Solution

The fourth proportional to 2,389.16, 3,298.50 and 1,893.80 is: 2,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.16 : 3,298.50 = 1,893.80 : x
  2. Step 2: Convert to fraction form
    2,389.16/3,298.50 = 1,893.80/x
  3. Step 3: Cross multiply
    2,389.16x = 3,298.50 × 1,893.80
  4. Step 4: Simplify right side
    2,389.16x = 6,246,699.30
  5. Step 5: Solve for x
    x = 6,246,699.30/2,389.16
  6. Step 6: Final answer
    x = 2,614.60

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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.