Home / 1,408.03-2,108.40-1,373.20

Finding the Fourth Proportional to 1,408.03, 2,108.40 and 1,373.20

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Solution

The fourth proportional to 1,408.03, 2,108.40 and 1,373.20 is: 2,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408.03 : 2,108.40 = 1,373.20 : x
  2. Step 2: Convert to fraction form
    1,408.03/2,108.40 = 1,373.20/x
  3. Step 3: Cross multiply
    1,408.03x = 2,108.40 × 1,373.20
  4. Step 4: Simplify right side
    1,408.03x = 2,895,254.88
  5. Step 5: Solve for x
    x = 2,895,254.88/1,408.03
  6. Step 6: Final answer
    x = 2,056.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.