Home / 7,348.16-10,140.64-4,205.36

Finding the Fourth Proportional to 7,348.16, 10,140.64 and 4,205.36

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Solution

The fourth proportional to 7,348.16, 10,140.64 and 4,205.36 is: 5,803.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.16 : 10,140.64 = 4,205.36 : x
  2. Step 2: Convert to fraction form
    7,348.16/10,140.64 = 4,205.36/x
  3. Step 3: Cross multiply
    7,348.16x = 10,140.64 × 4,205.36
  4. Step 4: Simplify right side
    7,348.16x = 42,645,041.83
  5. Step 5: Solve for x
    x = 42,645,041.83/7,348.16
  6. Step 6: Final answer
    x = 5,803.50

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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.