Home / 5,585.63-8,378.46-1,886.87

Finding the Fourth Proportional to 5,585.63, 8,378.46 and 1,886.87

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Solution

The fourth proportional to 5,585.63, 8,378.46 and 1,886.87 is: 2,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,585.63 : 8,378.46 = 1,886.87 : x
  2. Step 2: Convert to fraction form
    5,585.63/8,378.46 = 1,886.87/x
  3. Step 3: Cross multiply
    5,585.63x = 8,378.46 × 1,886.87
  4. Step 4: Simplify right side
    5,585.63x = 15,809,064.82
  5. Step 5: Solve for x
    x = 15,809,064.82/5,585.63
  6. Step 6: Final answer
    x = 2,830.31

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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.