Home / 4,130.16-5,698.98-2,639.40

Finding the Fourth Proportional to 4,130.16, 5,698.98 and 2,639.40

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Solution

The fourth proportional to 4,130.16, 5,698.98 and 2,639.40 is: 3,641.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.16 : 5,698.98 = 2,639.40 : x
  2. Step 2: Convert to fraction form
    4,130.16/5,698.98 = 2,639.40/x
  3. Step 3: Cross multiply
    4,130.16x = 5,698.98 × 2,639.40
  4. Step 4: Simplify right side
    4,130.16x = 15,041,887.81
  5. Step 5: Solve for x
    x = 15,041,887.81/4,130.16
  6. Step 6: Final answer
    x = 3,641.96

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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.