Home / 2,899.20-4,000.58-1,720.06

Finding the Fourth Proportional to 2,899.20, 4,000.58 and 1,720.06

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Solution

The fourth proportional to 2,899.20, 4,000.58 and 1,720.06 is: 2,373.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.20 : 4,000.58 = 1,720.06 : x
  2. Step 2: Convert to fraction form
    2,899.20/4,000.58 = 1,720.06/x
  3. Step 3: Cross multiply
    2,899.20x = 4,000.58 × 1,720.06
  4. Step 4: Simplify right side
    2,899.20x = 6,881,237.63
  5. Step 5: Solve for x
    x = 6,881,237.63/2,899.20
  6. Step 6: Final answer
    x = 2,373.50

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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.