Home / 4,281.21-6,421.79-1,507.55

Finding the Fourth Proportional to 4,281.21, 6,421.79 and 1,507.55

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Solution

The fourth proportional to 4,281.21, 6,421.79 and 1,507.55 is: 2,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,281.21 : 6,421.79 = 1,507.55 : x
  2. Step 2: Convert to fraction form
    4,281.21/6,421.79 = 1,507.55/x
  3. Step 3: Cross multiply
    4,281.21x = 6,421.79 × 1,507.55
  4. Step 4: Simplify right side
    4,281.21x = 9,681,168.82
  5. Step 5: Solve for x
    x = 9,681,168.82/4,281.21
  6. Step 6: Final answer
    x = 2,261.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.