Home / 5,415.64-7,473.58-2,931.64

Finding the Fourth Proportional to 5,415.64, 7,473.58 and 2,931.64

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Solution

The fourth proportional to 5,415.64, 7,473.58 and 2,931.64 is: 4,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.64 : 7,473.58 = 2,931.64 : x
  2. Step 2: Convert to fraction form
    5,415.64/7,473.58 = 2,931.64/x
  3. Step 3: Cross multiply
    5,415.64x = 7,473.58 × 2,931.64
  4. Step 4: Simplify right side
    5,415.64x = 21,909,846.07
  5. Step 5: Solve for x
    x = 21,909,846.07/5,415.64
  6. Step 6: Final answer
    x = 4,045.66

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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.