Home / 7,328.72-10,105.80-4,840.40

Finding the Fourth Proportional to 7,328.72, 10,105.80 and 4,840.40

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Solution

The fourth proportional to 7,328.72, 10,105.80 and 4,840.40 is: 6,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.72 : 10,105.80 = 4,840.40 : x
  2. Step 2: Convert to fraction form
    7,328.72/10,105.80 = 4,840.40/x
  3. Step 3: Cross multiply
    7,328.72x = 10,105.80 × 4,840.40
  4. Step 4: Simplify right side
    7,328.72x = 48,916,114.32
  5. Step 5: Solve for x
    x = 48,916,114.32/7,328.72
  6. Step 6: Final answer
    x = 6,674.58

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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.