Home / 3,313.56-4,970.40-1,005.12

Finding the Fourth Proportional to 3,313.56, 4,970.40 and 1,005.12

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Solution

The fourth proportional to 3,313.56, 4,970.40 and 1,005.12 is: 1,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.56 : 4,970.40 = 1,005.12 : x
  2. Step 2: Convert to fraction form
    3,313.56/4,970.40 = 1,005.12/x
  3. Step 3: Cross multiply
    3,313.56x = 4,970.40 × 1,005.12
  4. Step 4: Simplify right side
    3,313.56x = 4,995,848.45
  5. Step 5: Solve for x
    x = 4,995,848.45/3,313.56
  6. Step 6: Final answer
    x = 1,507.70

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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.