Home / 1,599.79-2,206.93-1,378.35

Finding the Fourth Proportional to 1,599.79, 2,206.93 and 1,378.35

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Solution

The fourth proportional to 1,599.79, 2,206.93 and 1,378.35 is: 1,901.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,599.79 : 2,206.93 = 1,378.35 : x
  2. Step 2: Convert to fraction form
    1,599.79/2,206.93 = 1,378.35/x
  3. Step 3: Cross multiply
    1,599.79x = 2,206.93 × 1,378.35
  4. Step 4: Simplify right side
    1,599.79x = 3,041,921.97
  5. Step 5: Solve for x
    x = 3,041,921.97/1,599.79
  6. Step 6: Final answer
    x = 1,901.45

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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.