Home / 3,130.21-4,688.50-1,567.49

Finding the Fourth Proportional to 3,130.21, 4,688.50 and 1,567.49

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Solution

The fourth proportional to 3,130.21, 4,688.50 and 1,567.49 is: 2,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.21 : 4,688.50 = 1,567.49 : x
  2. Step 2: Convert to fraction form
    3,130.21/4,688.50 = 1,567.49/x
  3. Step 3: Cross multiply
    3,130.21x = 4,688.50 × 1,567.49
  4. Step 4: Simplify right side
    3,130.21x = 7,349,170.01
  5. Step 5: Solve for x
    x = 7,349,170.01/3,130.21
  6. Step 6: Final answer
    x = 2,347.82

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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.