Home / 6,130.56-8,459.75-3,478.40

Finding the Fourth Proportional to 6,130.56, 8,459.75 and 3,478.40

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Solution

The fourth proportional to 6,130.56, 8,459.75 and 3,478.40 is: 4,799.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,130.56 : 8,459.75 = 3,478.40 : x
  2. Step 2: Convert to fraction form
    6,130.56/8,459.75 = 3,478.40/x
  3. Step 3: Cross multiply
    6,130.56x = 8,459.75 × 3,478.40
  4. Step 4: Simplify right side
    6,130.56x = 29,426,334.71
  5. Step 5: Solve for x
    x = 29,426,334.71/6,130.56
  6. Step 6: Final answer
    x = 4,799.94

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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.