Home / 5,415.45-7,473.32-2,931.45

Finding the Fourth Proportional to 5,415.45, 7,473.32 and 2,931.45

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Solution

The fourth proportional to 5,415.45, 7,473.32 and 2,931.45 is: 4,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.45 : 7,473.32 = 2,931.45 : x
  2. Step 2: Convert to fraction form
    5,415.45/7,473.32 = 2,931.45/x
  3. Step 3: Cross multiply
    5,415.45x = 7,473.32 × 2,931.45
  4. Step 4: Simplify right side
    5,415.45x = 21,907,649.26
  5. Step 5: Solve for x
    x = 21,907,649.26/5,415.45
  6. Step 6: Final answer
    x = 4,045.40

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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.