Home / 2,420.01-3,339.63-1,372.05

Finding the Fourth Proportional to 2,420.01, 3,339.63 and 1,372.05

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Solution

The fourth proportional to 2,420.01, 3,339.63 and 1,372.05 is: 1,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.01 : 3,339.63 = 1,372.05 : x
  2. Step 2: Convert to fraction form
    2,420.01/3,339.63 = 1,372.05/x
  3. Step 3: Cross multiply
    2,420.01x = 3,339.63 × 1,372.05
  4. Step 4: Simplify right side
    2,420.01x = 4,582,139.34
  5. Step 5: Solve for x
    x = 4,582,139.34/2,420.01
  6. Step 6: Final answer
    x = 1,893.44

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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.