Home / 1,536.40-2,117.28-1,437.58

Finding the Fourth Proportional to 1,536.40, 2,117.28 and 1,437.58

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Solution

The fourth proportional to 1,536.40, 2,117.28 and 1,437.58 is: 1,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.40 : 2,117.28 = 1,437.58 : x
  2. Step 2: Convert to fraction form
    1,536.40/2,117.28 = 1,437.58/x
  3. Step 3: Cross multiply
    1,536.40x = 2,117.28 × 1,437.58
  4. Step 4: Simplify right side
    1,536.40x = 3,043,759.38
  5. Step 5: Solve for x
    x = 3,043,759.38/1,536.40
  6. Step 6: Final answer
    x = 1,981.10

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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.