Home / 2,411.90-3,328.89-1,404.20

Finding the Fourth Proportional to 2,411.90, 3,328.89 and 1,404.20

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Solution

The fourth proportional to 2,411.90, 3,328.89 and 1,404.20 is: 1,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,411.90 : 3,328.89 = 1,404.20 : x
  2. Step 2: Convert to fraction form
    2,411.90/3,328.89 = 1,404.20/x
  3. Step 3: Cross multiply
    2,411.90x = 3,328.89 × 1,404.20
  4. Step 4: Simplify right side
    2,411.90x = 4,674,427.34
  5. Step 5: Solve for x
    x = 4,674,427.34/2,411.90
  6. Step 6: Final answer
    x = 1,938.07

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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.