Home / 7,328.04-10,112.63-3,970.86

Finding the Fourth Proportional to 7,328.04, 10,112.63 and 3,970.86

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Solution

The fourth proportional to 7,328.04, 10,112.63 and 3,970.86 is: 5,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.04 : 10,112.63 = 3,970.86 : x
  2. Step 2: Convert to fraction form
    7,328.04/10,112.63 = 3,970.86/x
  3. Step 3: Cross multiply
    7,328.04x = 10,112.63 × 3,970.86
  4. Step 4: Simplify right side
    7,328.04x = 40,155,818.11
  5. Step 5: Solve for x
    x = 40,155,818.11/7,328.04
  6. Step 6: Final answer
    x = 5,479.75

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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.