Home / 1,551.81-2,141.60-962.74

Finding the Fourth Proportional to 1,551.81, 2,141.60 and 962.74

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Solution

The fourth proportional to 1,551.81, 2,141.60 and 962.74 is: 1,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,551.81 : 2,141.60 = 962.74 : x
  2. Step 2: Convert to fraction form
    1,551.81/2,141.60 = 962.74/x
  3. Step 3: Cross multiply
    1,551.81x = 2,141.60 × 962.74
  4. Step 4: Simplify right side
    1,551.81x = 2,061,803.98
  5. Step 5: Solve for x
    x = 2,061,803.98/1,551.81
  6. Step 6: Final answer
    x = 1,328.64

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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.