Home / 4,101.90-6,153.95-1,638.45

Finding the Fourth Proportional to 4,101.90, 6,153.95 and 1,638.45

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Solution

The fourth proportional to 4,101.90, 6,153.95 and 1,638.45 is: 2,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.90 : 6,153.95 = 1,638.45 : x
  2. Step 2: Convert to fraction form
    4,101.90/6,153.95 = 1,638.45/x
  3. Step 3: Cross multiply
    4,101.90x = 6,153.95 × 1,638.45
  4. Step 4: Simplify right side
    4,101.90x = 10,082,931.19
  5. Step 5: Solve for x
    x = 10,082,931.19/4,101.90
  6. Step 6: Final answer
    x = 2,458.11

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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.