Home / 2,390.08-3,585.52-1,415.68

Finding the Fourth Proportional to 2,390.08, 3,585.52 and 1,415.68

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Solution

The fourth proportional to 2,390.08, 3,585.52 and 1,415.68 is: 2,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.08 : 3,585.52 = 1,415.68 : x
  2. Step 2: Convert to fraction form
    2,390.08/3,585.52 = 1,415.68/x
  3. Step 3: Cross multiply
    2,390.08x = 3,585.52 × 1,415.68
  4. Step 4: Simplify right side
    2,390.08x = 5,075,948.95
  5. Step 5: Solve for x
    x = 5,075,948.95/2,390.08
  6. Step 6: Final answer
    x = 2,123.76

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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.