Home / 3,810.48-5,259.60-2,630.40

Finding the Fourth Proportional to 3,810.48, 5,259.60 and 2,630.40

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Solution

The fourth proportional to 3,810.48, 5,259.60 and 2,630.40 is: 3,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,810.48 : 5,259.60 = 2,630.40 : x
  2. Step 2: Convert to fraction form
    3,810.48/5,259.60 = 2,630.40/x
  3. Step 3: Cross multiply
    3,810.48x = 5,259.60 × 2,630.40
  4. Step 4: Simplify right side
    3,810.48x = 13,834,851.84
  5. Step 5: Solve for x
    x = 13,834,851.84/3,810.48
  6. Step 6: Final answer
    x = 3,630.74

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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.