Home / 2,130.11-2,940.90-1,459.04

Finding the Fourth Proportional to 2,130.11, 2,940.90 and 1,459.04

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Solution

The fourth proportional to 2,130.11, 2,940.90 and 1,459.04 is: 2,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.11 : 2,940.90 = 1,459.04 : x
  2. Step 2: Convert to fraction form
    2,130.11/2,940.90 = 1,459.04/x
  3. Step 3: Cross multiply
    2,130.11x = 2,940.90 × 1,459.04
  4. Step 4: Simplify right side
    2,130.11x = 4,290,890.74
  5. Step 5: Solve for x
    x = 4,290,890.74/2,130.11
  6. Step 6: Final answer
    x = 2,014.40

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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.