Home / 2,284.18-3,152.16-1,289.40

Finding the Fourth Proportional to 2,284.18, 3,152.16 and 1,289.40

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Solution

The fourth proportional to 2,284.18, 3,152.16 and 1,289.40 is: 1,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.18 : 3,152.16 = 1,289.40 : x
  2. Step 2: Convert to fraction form
    2,284.18/3,152.16 = 1,289.40/x
  3. Step 3: Cross multiply
    2,284.18x = 3,152.16 × 1,289.40
  4. Step 4: Simplify right side
    2,284.18x = 4,064,395.10
  5. Step 5: Solve for x
    x = 4,064,395.10/2,284.18
  6. Step 6: Final answer
    x = 1,779.37

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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.