Home / 4,106.55-6,155.40-2,130.20

Finding the Fourth Proportional to 4,106.55, 6,155.40 and 2,130.20

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Solution

The fourth proportional to 4,106.55, 6,155.40 and 2,130.20 is: 3,193.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,106.55 : 6,155.40 = 2,130.20 : x
  2. Step 2: Convert to fraction form
    4,106.55/6,155.40 = 2,130.20/x
  3. Step 3: Cross multiply
    4,106.55x = 6,155.40 × 2,130.20
  4. Step 4: Simplify right side
    4,106.55x = 13,112,207.63
  5. Step 5: Solve for x
    x = 13,112,207.63/4,106.55
  6. Step 6: Final answer
    x = 3,193.00

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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.