Home / 1,564.60-2,159.63-935.59

Finding the Fourth Proportional to 1,564.60, 2,159.63 and 935.59

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Solution

The fourth proportional to 1,564.60, 2,159.63 and 935.59 is: 1,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.60 : 2,159.63 = 935.59 : x
  2. Step 2: Convert to fraction form
    1,564.60/2,159.63 = 935.59/x
  3. Step 3: Cross multiply
    1,564.60x = 2,159.63 × 935.59
  4. Step 4: Simplify right side
    1,564.60x = 2,020,528.23
  5. Step 5: Solve for x
    x = 2,020,528.23/1,564.60
  6. Step 6: Final answer
    x = 1,291.40

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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.