Home / 4,088.40-6,129.55-1,313.49

Finding the Fourth Proportional to 4,088.40, 6,129.55 and 1,313.49

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Solution

The fourth proportional to 4,088.40, 6,129.55 and 1,313.49 is: 1,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.40 : 6,129.55 = 1,313.49 : x
  2. Step 2: Convert to fraction form
    4,088.40/6,129.55 = 1,313.49/x
  3. Step 3: Cross multiply
    4,088.40x = 6,129.55 × 1,313.49
  4. Step 4: Simplify right side
    4,088.40x = 8,051,106.32
  5. Step 5: Solve for x
    x = 8,051,106.32/4,088.40
  6. Step 6: Final answer
    x = 1,969.26

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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.