Home / 2,038.18-2,811.08-1,408.96

Finding the Fourth Proportional to 2,038.18, 2,811.08 and 1,408.96

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Solution

The fourth proportional to 2,038.18, 2,811.08 and 1,408.96 is: 1,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.18 : 2,811.08 = 1,408.96 : x
  2. Step 2: Convert to fraction form
    2,038.18/2,811.08 = 1,408.96/x
  3. Step 3: Cross multiply
    2,038.18x = 2,811.08 × 1,408.96
  4. Step 4: Simplify right side
    2,038.18x = 3,960,699.28
  5. Step 5: Solve for x
    x = 3,960,699.28/2,038.18
  6. Step 6: Final answer
    x = 1,943.25

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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.