Home / 3,530.40-4,870.72-3,001.12

Finding the Fourth Proportional to 3,530.40, 4,870.72 and 3,001.12

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Solution

The fourth proportional to 3,530.40, 4,870.72 and 3,001.12 is: 4,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.40 : 4,870.72 = 3,001.12 : x
  2. Step 2: Convert to fraction form
    3,530.40/4,870.72 = 3,001.12/x
  3. Step 3: Cross multiply
    3,530.40x = 4,870.72 × 3,001.12
  4. Step 4: Simplify right side
    3,530.40x = 14,617,615.21
  5. Step 5: Solve for x
    x = 14,617,615.21/3,530.40
  6. Step 6: Final answer
    x = 4,140.50

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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.