Home / 5,535.81-8,303.81-1,640.16

Finding the Fourth Proportional to 5,535.81, 8,303.81 and 1,640.16

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Solution

The fourth proportional to 5,535.81, 8,303.81 and 1,640.16 is: 2,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.81 : 8,303.81 = 1,640.16 : x
  2. Step 2: Convert to fraction form
    5,535.81/8,303.81 = 1,640.16/x
  3. Step 3: Cross multiply
    5,535.81x = 8,303.81 × 1,640.16
  4. Step 4: Simplify right side
    5,535.81x = 13,619,568.81
  5. Step 5: Solve for x
    x = 13,619,568.81/5,535.81
  6. Step 6: Final answer
    x = 2,460.27

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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.